Хуудас 1 -аас 66 үр дүн
Several species of the genus Tanacetum are traditionally used in a variety of health conditions including pain, inflammation, respiratory and gastrointestinal disorders. In the current investigation, we evaluated the plant extract of T. artemisioides and some of its pure compounds (flavonoids) for
The chemotactic N-formylated oligopeptides are potent spasmogenic agents for guinea pig ileum. Structure-activity studies with various N-formylated peptides suggest the presence of a specific receptor that resembles in specificity the formyl peptide receptor on leukocytes. A competitive antagonist
1. Airway inflammation is a signal feature of human asthma, as is bronchial obstruction and the resultant airflow limitation. An obligatory accompaniment to airway inflammation is increased airway microvascular permeability, which in turn is causally related to bronchial oedema. In this review, we
Gastrointestinal inflammation is a prominent feature of protective reactions in animals immune against helminths. Infiltration into the inflamed mucosa of various cells and their subsequent activation result in the elaboration of an array of pharmacologically and biologically active substances. The
It has been demonstrated on isolated guinea-pig ileum and rats that nonsteroid antiinflammatory drugs (acetylsalicylic acid, ibuprofen, diclofenac sodium, butadione, and indomethacin) antagonized spasmogenic and inflammatory effects of sodium arachidonate, but not of other mediators of inflammation
CR3465 (L-Tyrosine, N-[(2-quinolinyl)carbonyl]-O-(7-fluoro-2-quinolinylmethyl) sodium salt) is a potent antagonist of [3H]leukotriene D4 ([3H]LTD4) binding to guinea pig lung preparations, its Ki (4.7+/-0.7 nM) being comparable with that of montelukast (5.6+/-0.6 nM). In tracheal strips from
Mast cells are prominent in the airways and have been implicated in the pathophysiology of asthma. The ability of mast cells to generate or release the vasoactive/spasmogenic mediators histamine, adenosine, PGD2, sulfidopeptide leukotrienes, and platelet-activating factor is thought relevant to
The therapeutic potential of non-steroid anti-inflammatory drugs in clinical asthma is offset by the real possibility of hypersensitivity and induction of severe airways obstruction. The influence of indomethacin on the antigen-induced asthmatic response was tested. Early and delayed asthmatic
Several non-steroidal anti-inflammatory agents (NSAIA) are shown to inhibit the net production of prostaglandin (PG)- like activity from arachidonic acid by a cell-free preparation of guinea-pig lung. Moreover, these agents also antagonize PGE-1-induced contractions of the isolated gerbil colon. The
A number of new observations have added to our understanding of mast cell biology and the relevance of this cell to the genesis of asthma. The purpose of this review has been to highlight this new information and to refer the reader to extensive reviews where previously documented and well-known
It has been shown that quinozole (aqueous solution), enteroseptol and nitroxoline (suspension with Tween-80) in a concentration of 0.2 X 10(-6)-1.10(-5) decrease the tone of the rat and guinea-pig ileum and diminish their peristalsis. When administered in the same concentrations quinozole removes or
Smoking is one of the major causes of morbidity and mortality in the developed world. The main cause of death related to smoking is myocardial infarction. Smoking not only accelerates the process of atherosclerosis but also predisposes to acute complications, early in atheromatous disease, and which
In guinea-pig ileum (GPI), the chemotactic peptide N-formyl-Met-Leu-Phe-OH (fMLF) possesses spasmogenic properties through the activation of formyl peptide receptors (FPRs). Despite this, the mediators involved remain to be elucidated. fMLF (1nM-1μM) induced a dose-dependent contraction of GPI
OBJECTIVE
Leukotriene D(4) and histamine are proinflammatory mediators that are released concomitantly by activated mast cells. There is the possibility of mutual potentiation of their actions in inflammatory diseases such as interstitial cystitis. We investigated whether human detrusor smooth
Substantial evidence indicates that airway hyperresponsiveness in asthma is associated with the inflammatory response directed toward the airway epithelium and submucosa. Endogenously released spasmogenic mediators interacting with smooth muscle have a greater effect on hyperresponsive than on